Loom for weaving terry fabrics



Feb. 13, 1923. 1,444,951.

- J. C O R RIGAN. Y

LOOM FOR WEAVING TERRY mamas.

.HLED APR. 9, l9l9. 2 SHEETS-SHEET 2.

Ili-

Patented against a shoulder or other abutment.

'ot the its.

. a LOOM FOR WEAVING- TERRY FABRICS.

Application filed April 9,

T 0 all '71) 71am it may concern Be it known that l. Josnrii ConnicAN, acitizen of the United States, and a resident of lloclaledge, county ofMontgomery, State of Pennsylvania, have invented certain new and usefulImprovements in Looms for eaving Terry Fabrics; of which the followingis a specification.

My invention relates to looms which are adapted to be employed forweaving terry fabrics and it has for its object, generally speaking. tosimplify and render more cilicient the mechanical construction of suchlooms and thereby also reduce the cost of race-plate and the reed havingconnection therewith.

In the construction as shown the raceplate comprises a metal plate (suchas steel) 1 situated adjacent the lay and to the top side of which athinner plate of less width is secured. The shuttle travels back andforth over the race plate. The steel plate is of a width substantiallyequal to that of the lay and substantially covers the same.

Movement of the said race-plate and reed connected therewith relativelyto thclay is ett'ected for the usual known purpose.

For accomplishing the above mentioned purpose orobjectthe constructionis such that the race-plate is not permitted to abut In consequencethere can be no collectionof dust. ravelings. etc, to interfere with theproper movements and operation of the race-plate during the weaving ot aterry fabric in which operation there is, as is well known, relative mo\'einents between the race-plate and the reed and the lay.

Another object of my invention is to provide the means for causingrelative move- 1 between the race-plate and a portion reed connectedtherewith and the lay with adjustments whereby the extent of suchrelative movement may be "varied; also to simplify the construction ofsaid means.

My invention also has tor its object to provide a simple and efficientmeans whereby the operation of the mechanism for weaving terry cloth orfabric may be auto .struction than that shown.

1919. Serial no. 288,701.

matically discontinued without interfering with the operation of theloom so that in the further operation smooth or plain cloth will bewoven. The period during which such mechanism is thrown out of operationis controlled so that automatically at the expiration of a certainpredetermined time and after a 'predetern'lined length 01 such plain orsmooth'cloth has been woven the terry weaving mechanism is again throwninto operation and the weaving of ter fabric is resumed. It is apparent,therefore, that this mechanism provides means whereby the length of thesections of terry fabric and the intermediate lengths of smooth or plaincloth to be woven may be controlled and varied as desired.

Other objects and advantages of my invention will be referred to in thedetailed description thereof which follows or will be apparent from suchdescription.

In order that my invention may be more ireadily understood and itspractical advantages fully appreciated reference should be had to theaccompanying drawings in which I have illustrated one form of aconvenient embodiment thereof. It will beunderstood, however, that thesaid invention is susceptible of embodiment inother forms of conln thedrawings Y F'gure l is a vertical sectional view taken an front to roaralong the line 11 of I ig. 2-3, parts of the construction being shown inside elevation and parts of the loom. construction being omitted inorder that the" parts constituting the invention may be morecilearlyshown;

Fig. 2 is an enlarged transverse sectional view taken on the line 22 ofFig. 3 with a portion of one of the parts broken away tov show anotherpart more clearly;

lllig. :5 is a horizontal sectional View taken. through the upper partolthe loom structure. the portions of the structure constr tilting theinvention being shown in top plan view; and- 'i l Fig. at a view infront eleivation'ot a portion ofa loom structure showing in trontelevation a portion of the; structure constinested at its upper end toth v ente iegdlot.

which the mechanism oi the terry attachments is actuated. At itsopposite end from the gear 6 the shaft is provided with a,

wheel 9 driven by a belt (not shown) to rotate the shaft 5.

The crank arms at are connected with the lay swords 3 by means 01connecting rods or links 10. It is apparent that rotation of the shaft 5causes a rocking'or oscillatory V movementof the lay 2 which is securedto the upper ends or the lay swords.

In additionto the gear 7 the main shaft 8 also provided with a smallgear which is in engagement with a larger gear 16 mounted upon a shaft17, which snaft is mounted in bearings 18 supported in crossgirts 19extending from front to rear of the loom frame and being supported attheir op- 1 posite ends upon the front and rear crosspieces of the loomframe structure.

In the. construction shown the gear 15 is provided with thirty teethwhile the gear 16 is provided with forty-five teeth. I

The shaft 1? is also provided with a cam 20 having oppositely disposedhigh or dwell portions 21 and 22 and intermediate depressions 23 and 2%,'the said portions and the said depressions being situated in opposingrelation to each other as shown. The high or dwell portion 2-1 isconsiderably longer or wider than the opposing high or dwell portion 22.The said cam 20 is adapted to contact and co-operate with a contactwheelv supprnrted upon a lever 26 pivoted at 27 intermediate its endsand extending longitudinally of the loom structure. Depend-- lrom thesaid lever is an arm 28 to the lower end of which the front end of atrong coiled spring 29 is secured. The rear end orhthe said spring isconnected to an arm or projection 30. This arm may have c mention withany .lixed or stationary por- ;-he loom structure. In the construcishown it is connected with the adjacent crossgirt l9,

The tension of the spring 29 acting upon the depending arm 28 tends toforce the portion of the lever :26 in rear of its pivot 533 in an upwarddirection so as to hold the wheel in contact with the periphery of thecam member 20. At its rear end the lever 26 is slotted, which slotprovides means tor adjustably connecting the lower end of a linkthereto. The upper end of the said linl: is adjustably connected in. aslot 36 in the end portion of the forwardly prm jec'ting arm 37 of abell crank lever 38 secured to a rock-slntlt 39. The other arm .50 ofthe said bell crank extends downwardly and is provided witha'rnumber ofholes ll adjacent to its lower end to provide for adjustably connectingthe rear end of a con-- necting rod 42 thereto. The trout end of saidconnecting rod is conne to the lower end of an arm 45 depending; from arockshaft 46 journaled at its opposite ends in bearings 47 formed inprojections or lugs which depend from ll-shaped members 5 which aresecured to the lay 2.

The opposite side portions of the said members 50 project above the topsurface of the hole of the lay 2 and are provided with bearings 52 inwhich the opposite hardened ends 53 of the bars 54 are slidably ormovably mounted. These bars extend across and in close proximity to theupper surface of the lay.

The race-plate is secured to and supported upon these bars, said platecomprising the plate or bar 56 of suitable metah such as steel, which issecured to the said bars 5 and a narrower plate 57 secured on the top ofthe plate or bar 56 by means or screws 6O designates a groove extendinglougitiulinally of the plate or bar 56, said groove he- .ing provided asa seat or hearing for the lower bar of the reedGl. The rear edge ofthe'plate 57 is curved and titted against the cylindrical surl'ace oithe lower bar of the reed as shown. the construction being such as topermit the turning or rocking oi the lower bar oi? the reed in seat,said bar being prevented, however, 'lrom becoming accidentallydisengaged therefrom.

The rock shaft 46 is provided with arms l0 adjacent its opposite endswhich extend upwardly therefrom and are pivotally connected at theirupper ends to the rear ends 71 of strips or bars T2 of suitable materialwhich extend. umlerneath and are secured by means oil; screws 73 to thelower side of the plate or bar 56 oi the race-plate.

If the lever 26 left free to oscillate or rock upon-its pivot it will beapparent that as the cam 20 rotates the said lever is rocked or moved.about its pivot and that sucl rocl-: ing movement through theconnections 3! 38, 4:0, 4-5 and causes oscilla u reciprocatory movementof the race prising the plates an i oi the movements in he lay therace-plate and the re i ,7 by means of the crank arms and connectingrods or links 10, as previously described.

hen the contact wheel 25 drops into the recesses or depressions 23 and24: of the cam 20 the movement oi? the connections 35 38. etc., causesrearward movement ot the raceplate and reed with the result that two oithe picks or weft threads lelt loose and are not jammed or pushed uptight against the edge of the cloth being woven.

contact with the contact wheel 25, at which I tune the race-plate isheld in forward position, a third pick or weft thread is thrown or shotand all three picks or welt threads,

including the two which have been left loose by reason ot the presenceof the depressions 23 and 24, are forced or pushed Cir the said chain iscauseil to up tight against the edge of the cloth bemg woven and theloops in certain ol: the warp threads are termed thereby produc ing afabric known or called terry. These loops are formed in certain oi thewarp threads which are not drawn ti ht or taut.

The height of these loops may be varied by varying the distance throughwhich the race-plate moves relatively to the lay. This adjustment may beeliiected by changing the points of connection of the opposite ends ofthe link t0 the lever 26 and to the arm 37 of the bell crank lever 38and also the point of connection of the rear end of the connecting rod41 to the lower end portion of the arm l0 of the said bell crank lever.

If a higher loop is desired the adjustment should be made to cause alonger or greater movement of the race plate and reed relative to thelay 2. x

In'the weaving ol fabrics containing terry portions it is frequentlydesirable that means he provided not only for interrupting ordiscontinuing the operation oil the terry mechanism and during suchdiseon tinuance permit-ting or causing the weaving of a plain or smoothfabric but such means should also determine or be capable of determiningthe length of the terry portions and the intermediate smooth ornon-terry portions of the fabric.

As a means or mechanism for accomplishing this desirable result I haveprovided a relatively short shat-t mounted in bearings 81 and 82supported upon the front portion of the frame structure of the loom atone side thereof adjacent to the take-up gear mechanism common teloomstructures. S3 designates a gear mounted on the shaft 80, WlllClIgGal isin engagement with a gear 84, the latter being one of a train of gears"for operating. the take-up roll. The other gears cl? said train are notshown. The said shaft 530 is al o g irc'vided with a sprocket wheelwvhich sprocketchain 86 is-engaged and over which avcl. The links ofsaid chain are separable so that its length may be increased ordiminished as desired.

The chain is provided with one or more links having projectionssuch 8Tthereon. In the construction shown two adjacent links of the chain areprovided with projections. It will be understood that links in additionto and situated a distance from "those shown with projections mayalso'be provided with. projectionsaml that by reason of the presence 0tprojections at intervals in the chain the periods during which length ofterry fabric which is woven may lnycontrolled or .else a greater or lossnuns beret links may be ren'ioved or inserted in the chain to lengthenor shorten the same "to thereby control the length of a terry. sectionof the fabric which is b'eing'woven.

The projections 87, whether one or more groups thereot contact with theouter end portion of an arm 90 of a. bell crank lever 91. The other arm92 of the said bell crank lever extends as shown in Fig. 1 ot ,thedrawings toward the. bottom oi the loom structure and is connected atits lower end to a link 93, the opposite end of said link beingconnected to an arm 94- upon .a rock sha'tt 95 supported in bearings-'96secured to the front lower cross-barQG of the frame of the loom. Theshalt 95: provided at its opposite end portionwith an arm 97 having apin 98 .in engagement witlra slot 99 in the upper end portion of a dog100 piv otally supported at 101. The said dog is provided with aforwardly extending pro jection 1,02 slotted or notched as indicated at103. A portion of the cross-bar 96 pro jects into the said slot or notch103 to limit the extent of pivotal movement of the dog 100. V hen thedoglOO moved rearwardly it is adapted to engage a shoulder 10 1-. uponthe forward end of the lever When in engagen'ient with the said shouldersuch dog prevents operation of the sa-idlever.

The arm. 90 ot the hell or lever 91 is provided with weight lon, which.when the smooth part of the sprock .t'

A chain 86 in operatwe relation. to the said arm 90. holds the said bellcrank lever -11) theposition shown ,=in Fig. l of the di ings, in whichposition thedog 10D is held out oi" ei'igagement witlrthc shoulderIllllupon the front end oi the lever .26 e-r lever tree to oscillate orrock. jectionsrsuch 87, upon the sprocket chain 86 contact with the'arin90 or the hell crank lever 97'. mov .nent thereot is etiected to thr wthe do hi into ei'w enient with the said should llleland tin citation orpi'r t thatt-he when the dc 'e iioni; :3 are broi h con t wht l tl'iatwhen the d the said lever to revent operation their-cot relativemovement of the race-plate with r :QEOt; to the lay is prevented and inconsequence each pic i weft threadis forced up otagainst the edge of thecloth being prevent opi the lever 36 d to move of the cam 25. Theresult. therefore. is

i1 r oven to produce plain or smooth cloth distinguished from terrycloth fabric.

ring: the said W hen pro" .00 is in engagement with into operativerelation to the 1 7 1 connection with the tions 8? determines Ingesupported upon depending; from the said roe to carry a nojcctionprojections the case may be, out of contact with the arm 90 the weight.l-(li causes movement theroot and of the parts connected therewith toadiso W 100 from the lever 96 to permit operation of the latter by thecam and consequent 1' ing of the terry fabric.

, The length of v ie during which the arm 90 is held in elevatedposition by projecthe length of the portions oi? smooth r i lain iabricintermediate the terry sections, .iiikewise the length of time duringwhich he said arm 90 occupies its lower position, as when restinguponthe links the sprocket chain other than those provided with the said.projections, 'deter mines the length of the terry sections.

1 claim 1. In the como' loom O'i' the character described, aation ofray, pivoted arms for r causing lay, bearsides oil the opposite cnoportions 1 W slidably supported in the d bearings, a raceplate securedto the sa oarsanzl means for causing reciprocator; movement of the saidrace-plate independently of the oscillatory movement of the said lay,

2. In a loom of the character described, the combination of a. la ansfor sup porting the same, means i'" 5 oscillatory movement of the a aplate, means for supportnw out of contact with said la a cam, a leverhaving contact with the said and da nted to be actuated thereby andconnecti as intermediate the said lever and the race plate,wherebyactuation ot the said lever causes actuation oi the (3 re eilatcindependently oi the oscillato y movement oscillatory movement I oi thesaid lav.

v 3. In a loom oi the character described, the combination of a lay,means for causing; oscillatory movement thereo; a race-plate, a rockshaft, connections between the said rock shaft and the said race-o i anarm 1 means the said h s; ure i non l :1 in to jv LL18 said racedoliudetor Tfochin ractcr d i'ibed, a means tor reusing tuereo bearings sunI bars slidablv un oubted trace- S'iffhfiftfiil approximate to t e lay,a. rock shalt, or support Q d icon 1 and pivoted in said bear upon bzusa and parallel r lation means carried by the ing said :ck shalt, arenection with the said rock shtional arm having rie'id connection withthe :umption oi the weavsaid ra e-plate, an addisaid rock shalt andmeans for causing rocklug n'ioveinei'it oi. the last mentioned arm andthereby causing rocking movement of the said [first named arms to effectback and forth movement of the said raceqalate.

e. In a loom of the character descril'ied, the combination of a lay,means tor causing oscillatory movement thereof, a race-plate situatedabove and in approximate and parallel relation to the-said lay, cam,means for causing rotation of said cam, a plurality of leversintermediate the said cam and the said race-plate, one of the saidleversbeing adapted to be actuated by the said cam to cause actuation ofthe other of said levers to ca actuation of the said raceqJla-te and ad,istablo connections between said levers, substantially as described.

6. .ln a loom or the character described, he combination of a lay, meansfor causing oscillatory movementthereof, a race-plate, a cam, means forcausin rotary movement of said cam, a lever situated in adjacent relation to said cam, means for holding said lever in contact with saidcam, a bell crank lever, a connection between the cam actuated lever andan arm of the said bell crank lever, means tor adjusting said connectionso that movement of the cam actuated lever will vary the throw of thesaid bell crank lever, a rock shaft, connections between the saidrock's-shaft and the said race-plate and connections between the saidrock shaft and the other arm of said bell crank lever Whereby movementof the said bell crank lever will cause rocking movement of the saidrock shaft to cause back and forth movement of the said race-plate.

7. .ln a loom of the character described, the combination oi? a lay,means for causing oscillatory movement thereof, a race-plat), a cam,means for causing rotary movement ct said cam, a lever situated inadjacent ation to said cam, means for holding said lever in contactwithsaid cam, a bell crank v.

Tool-ring movement of the said rock shaft to cause back and :lorthmovement '01": the said race-plate 8. In a looin oi the characterdescribed, the combination oi? a lay, a race-plate supported inoperative relation tothe said lay, a can], a pivoted lever situated inadjacent vrelation to said cam, means for yieldingly holding a portionof said lever in contact with the said cam, a pivoted arm situated adistance from "the said cam actuated. lever, a link connecting the saidlever and the said arm, means for varying the connections between thesaid link and the said lever and arm, a second arm having rigidconnection with the first named arm and extending at an angle withrespect thereto, the said arms being actuated by the actuation ot thesaid cam actuated lever and connections between the end portion of thesecond named arm and the said race-plate whereby actuation of the saidarm causes actuation of the said race-plate. v

9. in a loom of the character described, the combination of a lay, meansfor causing oscillatory movement thereot, a race-plate, a cam,connections intermediate the said cam'and the said race-plate wherebythe said cam is adapted to cause movement of the said race-plateindependently of the movement of said lay and a device for en-. gagingthe said connections to prevent operation thereof and thereby preventmovement oi the said race-plate independently of the i said lay.

10. In a loom of the character described, the combination of a lay,means for causing oscillatory movement thereof, a race-plate, a cam,connections intermediate the said cam and the said race-plate wherebythe said cam is adapted to cause movement of the said race-plateindependently of the movement of said lay, a device for ch nging saidconnections to prevent operation there- (i'i and thereby preventmovement of the said race-plate independently oi said lay andautomatically acting means for causing movement of said device intoengagement with the connections.

11. In a loom ot the character described, the combination of a lay,means for causing oscillatory movement of said lay, a raceplate, meansfor causing oscillatory movement of said race-plate independently or"the movement of said lay, take-up gear mechanism, a device which isadapted to engage a part of the means for causing independent movementof the said. race-plate to prevent operation of the said means andmechanism intermediate the said take-up gear mechanism and the saiddevice for causing movement of the latter into engagement with the saidpart.

'12. In a loom of the character described, the combination of a lay,means tor causing oscillatory movement thereof, a race-plate, means forcausing movement oi said raceplate independently of the movement of saidlay, said means comprising a lever, a pivoted dogadapted to be engagedwith and disengaged from said lever and means for auton'iatically movingsaid dog into engagement with said lever.

. In. a loom of the character described,

the combination of a'lay, means: for causing oscillatory movementthereof, arace-plate, a rotary cam, connections intermediate the saidcam and the said raceplate,said connections being ad-pted to be act atedby said cam to (2 use movement of said raceilate indepcnc y of the saidlay, a pivot-- ed device a movement of said device at intervals intoengagement with a part of said connections to prevent actuation thereofby the said carm 141:. in a loom otthe character describer, t 1ecombination or a lay, meanstor causing oscillatoryv movement thereof, arace-plate, a rotary cam, a lever adapted to be actuated by said cam,connections between said lever and the said raceplate whereby actuationoi the lever causes movement of the said connections to actuate the saidrace-platelndependently of the said lay, a device adapted'to be movedinto engagement with the said lever to prevent actuation thereof andinto engagement with said lever.

15. In a loom of the character described, the comblnation of a lay,means for causing means for causing pivotal means for automaticallymoving said device oscillatory movement of said lay, a race- I plate,means for slidably'supporting the said race-plate, a rotary cam, a leverpivoted intermediate 1ts ends, means tor yleld ngly pressing one portionof said lever upon one side of its pivot in contact with the said cam,connections between the said last mentioned portion oi? said lever andthe said race-plate whereby pivotal or swinging movement of said levercauses back and 'iorth movement ot the said race-plate and I .a deviceadapted to engage the portion of the said cam, connections between the Ysaid last mentioned portion of said lever and the said race-platewhereby piv otalor swinging movement of said le ver causes back andforth movement of the said race-plate, a pivoted. device adapted to bemoved at intervals into engagement with the portion of said lever uponthe opposite side of its pivot to prevent pivotal movement thereof inone direction and thereby prevent back and forth movement of the said'ace-plate and automatically acting means for causing movement of thesaid pivoted device at intervals into and out of engagement with thesaid lever.

17. in a loom of the character described, the combination of a lay,means tor causing swinging inoven'ient thereof a race-plate, means forcausing movement of said raceplate relatively to the said layindependently thereof a rotatable shaft, a chain on said shaft, a bellcrank lever having one arm in operative relation to said chain, the saidchain having one or more projections thereon for contacting with thesaid arm to lift the same, a pivoted deviceadapted to be moved into andout of engagement with a part ot the n'ieans for causing movement ot thesaid race-plate and connections intermediate the said device and theother arm of said bell crank lever whereby swinging movement of saidlever causes swinging movement of the said device into and out ofengagement with said part.

In testimony that I claim the foregoing as my invention l have hereuntosigned my name this 3rd day of April, A. D. 1919.

JOSEPH CORRIGAN.

